Unimodular cosmology and the weight of energy

2007/02/28 by Enrique Álvarez, Enrique Alarcón Álvarez, Antón F. Faedo · 1 citation
Engineering · Mathematics · Physics and Astronomy · #Applied mathematics #Astrophysics #Black Holes and Theoretical Physics #Classical mechanics #Cosmology #Cosmology and Gravitation Theories #Coupling (piping) #Energy (signal processing) #Engineering #Gauge (firearms) #Geometry #Gravitation #Jacobian matrix and determinant #Kinetic energy #Materials science #Mathematics #Mechanical engineering #Physics #Pure mathematics #Quantum Electrodynamics and Casimir Effect #Quantum mechanics #Symmetry (geometry) #Theoretical physics #Unimodular matrix #astro-ph #gr-qc #hep-th

paper · pdf · doi:10.1103/physrevd.76.064013

published as Phys.Rev.D76:064013,2007 · LaTeX, 23 pages, conclusions expanded. Two paragraphs and a new reference added

arxiv created 2007/07/16 · openalex publication_date 2007/09/13 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

Some models are presented in which the strength of the gravitational coupling of the potential energy relative to the same coupling for the kinetic energy is, in a precise sense, adjustable. The gauge symmetry of these models consists of those coordinate changes with unit Jacobian.

Citations

• Non-Local Modification of Gravity and the Cosmological Constant Problem
• Kinetic energy and the equivalence principle
• Can one tell Einstein's unimodular theory from Einstein's general relativity?
• Casimir effect and the quantum vacuum
• Three‐YearWilkinson Microwave Anisotropy Probe(WMAP) Observations: Implications for Cosmology
• Relativistic Binary Pulsar B1913+16: Thirty Years of Observations and Analysis
• Demonstration of the Casimir Force in the 0.6 to6μmRange
• Review of Particle Physics

Cited by

• Analyzing modified unimodular gravity via Lagrange multipliers